quitting job Korea foreigner employer shutdown foreign worker Korea visa violation part time korea notice period korea labor rights foreigners Korea Korea job search guide e7 visa job change korea salary not paid Korea Seoul Global Center labor office communication Korea workplace change Korea foreign worker side job korea foreign worker resignation Kowork labor office foreign workers Korea JobKorea job change visa korea process foreign worker korea immigration reporting steps change job korea visa visa reporting deadline Korea work visa korea fired in Korea visa Korea job platforms work visa korea rules employer no response Korea foreign worker job change korea unpaid severance Korea retirement pay Korea Korean labor law foreigners visa sponsorship Korea workplace change reporting Korea foreign worker KOTRA job fair English jobs Korea foreign worker ghosted Korea foreign worker visa korea rules job change korea immigration work compliance resigning job korea job change Korea severance pay Korea freelance jobs Korea job termination Korea foreigner XpatJobs foreign worker unsafe work Korea work in South Korea 2025 foreigner jobs Seoul foreign worker mistakes Korea expat career Korea work visa status korea employment visa LinkedIn Korea foreign worker severance Korea part-time jobs Korea foreign worker Korea unpaid wages Korea foreign worker reporting delay Korea Saramin visa reporting timing Korea non-teaching jobs Korea labor office Korea foreign employment law korea company closed Korea visa jobs in Korea for foreigners E-7 visa Korea teaching jobs Korea unpaid salary Korea foreigner foreign worker job change unpaid wages foreigner Korea